Hex Washer Head Self-Tapping Roofing Screw with EPDM Washer
Head Type：Hex Washer Head
Thread Type：Coarse Thread
Material Options：Carbon steel /Stainless steel（304/316）
Finish / Coating：Magni coating
- Typically gray or silver-gray in color
- Multi-layer coating system: zinc-plated base layer with organic top coating
- Tested in accordance with ASTM B117 salt spray requirements
- Compatible with EPDM sealing washers, with no risk of chemical corrosion
Applications：
- Used for fastening metal roofing sheets and wall cladding to timber or light-gauge steel substructures.
- Commonly applied in residential, commercial, and agricultural roofing systems where weather resistance is required.
- Designed for roof and sidewall installations requiring a secure fixing combined with reliable waterproof sealing using an EPDM washer.
- Suitable for outdoor applications exposed to rain, wind, and temperature changes.
This self-tapping roofing screw provides a strong mechanical connection and long-term weather sealing, making it ideal for metal roofing and cladding installations in the U.S. market.
| Size | Dia (mm) | Drill Tail |
|---|---|---|
| T17 10–16 × 1″ | 4.8 | Type 17 |
| T17 10–16 × 1-1/2″ | 4.8 | Type 17 |
| T17 10–16 × 2″ | 4.8 | Type 17 |
| T17 10–16 × 2-1/2″ | 4.8 | Type 17 |
| T17 10–16 × 3″ | 4.8 | Type 17 |
| T17 10–16 × 4″ | 4.8 | Type 17 |
| T17 10–16 × 5″ | 4.8 | Type 17 |
| T17 10–16 × 1″ Hi-Lo | 4.8 | Type 17 |
| T17 10–16 × 1-1/2″ Hi-Lo | 4.8 | Type 17 |
| T17 10–16 × 2″ Hi-Lo | 4.8 | Type 17 |
| T17 10–16 × 2-1/2″ Hi-Lo | 4.8 | Type 17 |
| T17 10–16 × 3″ Hi-Lo | 4.8 | Type 17 |